Constraining the Anomalous Microwave Emission Mechanism in the S140 Star Forming Region with Spectroscopic Observations Between 4 and 8 GHz at the Green Bank Telescope

Anomalous microwave emission (AME) is a category of Galactic signals that cannot be explained by synchrotron radiation, thermal dust emission, or optically thin free-free radiation. Spinning dust is one variety of AME that could be partially polarized and therefore relevant for ongoing and future cosmic microwave background polarization studies. The Planck satellite mission identified candidate AME regions in approximately $1^\circ$ patches that were found to have spectra generally consistent with spinning dust grain models. The spectra for one of these regions, G107.2+5.2, was also consistent with optically thick free-free emission because of a lack of measurements between 2 and 20 GHz. Follow-up observations were needed. Therefore, we used the C-band receiver (4 to 8 GHz) and the VEGAS spectrometer at the Green Bank Telescope to constrain the AME mechanism. For the study described in this paper, we produced three band averaged maps at 4.575, 5.625, and 6.125 GHz and used aperture photometry to measure the spectral flux density in the region relative to the background. We found if the spinning dust description is correct, then the spinning dust signal peaks at $30.9 \pm 1.4$ GHz, and it explains the excess emission. The morphology and spectrum together suggest the spinning dust grains are concentrated near S140, which is a star forming region inside our chosen photometry aperture. If the AME is sourced by optically thick free-free radiation, then the region would have to contain HII with an emission measure of $5.27^{+2.5}_{-1.5}\times 10^8$ $\rm{cm^{-6}\,pc}$ and a physical extent of $1.01^{+0.21}_{-0.20} \times 10^{-2}\,\rm{pc}$. This result suggests the HII would have to be ultra or hyper compact to remain an AME candidate.Comment: 21 pages, 14 figures. Submitted to Ap

Comparison of outcome measures for patients with chronic obstructive pulmonary disease (COPD) in an outpatient setting

BACKGROUND: To assist clinicians and researchers in choosing outcome measures for patients with chronic obstructive pulmonary disease attending routine outpatient clinics, a comparative assessment was undertaken of four questionnaires designed to reflect the patients' perception of their physical and emotional health in terms of their feasibility, validity, reliability, and responsiveness to health change. METHODS: Two condition specific questionnaires, the St George's Respiratory Questionnaire (SGRQ) and Guyatt's Chronic Respiratory Questionnaire (CRQ), and two generic questionnaires, the Short Form-36 Health Survey (SF-36) and Euroqol (EQ), were compared for their discriminative and evaluative properties. Spirometric tests and a walking test were also performed. One hundred and fifty six adults who were clinically judged to have COPD and who attended an outpatient chest clinic were assessed at recruitment and six and 12 months later. Patients were also asked whether their health had changed since their last assessment. RESULTS: Completion rates and consistency between items for dimensions of the SGRQ were lower than for dimensions of the other questionnaires. The distributions of responses were skewed for certain dimensions in all questionnaires except the CRQ. Validity was supported for all instruments insofar as patients' scores were associated with differences in disease severity. The generic questionnaires better reflected other health problems. All instruments were reliable over time. The condition specific questionnaires were more responsive between baseline and first follow up visit but this difference did not persist. While certain dimensions of the SF-36 were responsive to patient perceived changes, this did not apply to the derived single index of the EQ. The rating scale of the EQ, however, provided a quick and easy indicator of change. CONCLUSIONS: Evidence from this study supports the CRQ and the SF-36 as comprehensive outcome measures for patients with longstanding COPD

Higher sexual excitation is associated with an increase in sex-linked substance use in women with a history of unwanted sexual contact

Survivors of unwanted sexual contact have an increased likelihood of using substances in sexual situations, which puts them at heightened risk for intoxication-related harms. Separately, research has indicated that women may intentionally use substances in sexual situations to either enhance pleasure (i.e., increase sexual excitation) and/or reduce sexual anxiety or shame (i.e., reduce sexual inhibition), a phenomenon termed sex-linked substance use (SLSU). A predominant assumption in the literature is that women with unwanted sex histories are more likely to disengage during sex, suggesting greater inhibition-related SLSU; however, there is little prior research directly examining if women who have unwanted sex histories primarily engage in SLSU to increase sexual excitation or decrease inhibitions. We conducted exploratory analyses of an online survey in a convenience sample of 516 undergraduate women including data on their history of unwanted sex, SLSU, and sexual excitation/inhibition. Sexual excitation mediated the association between a history of unwanted sexual contact and SLSU, suggesting that women with unwanted sexual histories reported higher levels of sexual excitation, which in turn was associated with a higher likelihood of using substances to increase pleasure during sexual activity. Specifically, arousability, partner characteristics, and power dynamics subfactors were significant mediators. Sexual inhibition did not mediate the relationship between a history of unwanted sexual contact and SLSU, suggesting that women with unwanted sex histories may have been less likely to use substances to reduce sexual inhibitions. If replicated, these findings suggest that sexual excitation may be a useful target of intervention surrounding SLSU, particularly in women with histories of unwanted sexual contact. Specifically, treatments targeting cognitive and affective tendencies associated with sexual excitation may help women who engage in SLSU to have safe, pleasurable sexual activity, without increasing the risk of intoxication-related harms

HCI 2020: Looking Back to the Future

In March, 2007, a forum entitled HCI 2020: Human Values in a Digital Age, was held in Sanlúcar la Mayor, Spain, just outside Seville. Its purpose was to gather luminaries in computing, design, social sciences, and scientific philosophy to discuss, debate and help formulate an agenda for human-computer interaction (HCI) over the next decade and beyond. This resulted in a detailed report, released in April 2008, in the form of a book called Being Human: Human-Computer Interaction in the Year 20201, authored by 45 members of the wider HCI community. In this panel, we shall build from four core questions. How successfully did the HCI 2020 forum and report recognize trends and shape HCI? What major trends or issues did they fail to anticipate? How valuable to the HCI community, to the participants, and to the sponsoring organizations was the forum and the report? And finally, what does this history suggest about both the process and the ultimate value to HCI, to computing in general, and to the world, of creating a HCI 2035 vison?

The Interpreter In An Undergraduate Compilers Course

An undergraduate compilers course poses significant challenges to students, in both the conceptual richness of the major components and in the programming effort necessary to implement them. In this paper, I argue that a related architecture, the interpreter, serves as an effective conceptual framework in which to teach some of the later stages of the compiler pipeline. This framework can serve both to unify some of the major concepts that are taught in a typical undergraduate course and to structure the implementation of a semester-long compiler project.Comment: Final version to appear in SIGCSE '1

Far-infrared polarimetry from the Stratospheric Observatory for Infrared Astronomy

Multi-wavelength imaging polarimetry at far-infrared wavelengths has proven to be an excellent tool for studying the physical properties of dust, molecular clouds, and magnetic fields in the interstellar medium. Although these wavelengths are only observable from airborne or space-based platforms, no first-generation instrument for the Stratospheric Observatory for Infrared Astronomy (SOFIA) is presently designed with polarimetric capabilities. We study several options for upgrading the High-resolution Airborne Wideband Camera (HAWC) to a sensitive FIR polarimeter. HAWC is a 12 x 32 pixel bolometer camera designed to cover the 53 - 215 micron spectral range in 4 colors, all at diffraction-limited resolution (5 - 21 arcsec). Upgrade options include: (1) an external set of optics which modulates the polarization state of the incoming radiation before entering the cryostat window; (2) internal polarizing optics; and (3) a replacement of the current detector array with two state-of-the-art superconducting bolometer arrays, an upgrade of the HAWC camera as well as polarimeter. We discuss a range of science studies which will be possible with these upgrades including magnetic fields in star-forming regions and galaxies and the wavelength-dependence of polarization.Comment: 12 pages, 5 figure

Do third-year mental health nursing students feel prepared to assess physical health?

Background The life expectancy for people with mental health issues is significantly lower than the general population, however, their physical health needs are often unrecognised by health professionals. Aim To investigate whether third-year mental health nursing students are clinically prepared to undertake a pre-defined set of physical health checks. Method A 34-item questionnaire was completed by two cohorts of mental health nursing students in their third and final year. Participants self-reported on their competence to assess a range of physical health checks. 37 questionnaires were completed and analysed. Findings Three groups emerged: group 1 – 100% of students self-declared competence in assessments including temperature and pulse, group 2 – more than 50% of students self-declared competence in assessments including urinalysis and pulse oximetry, and group 3 – less than 50% of students self-declared competence in taking electrocardiograms and using the hydration assessment tool. Conclusion The student participants of this study were not adequately prepared to undertake a complete range of physical health assessments for people with mental health issues

Some pioneers of European human genetics

Some of the pioneers of human genetics across Europe are described, based on a series of 100 recorded interviews made by the author. These interviews, and the memories of earlier workers in the field recalled by interviewees, provide a vivid picture, albeit incomplete, of the early years of human and medical genetics. From small beginnings in the immediate post-World War 2 years, human genetics grew rapidly across many European countries, a powerful factor being the development of human cytogenetics, stimulated by concerns over the risks of radiation exposure. Medical applications soon followed, with the recognition of human chromosome abnormalities, the need for genetic counselling, the possibility of prenatal diagnosis and later, the applications of human molecular genetics. The evolution of the field has been strongly influenced by the characters and interests of the relatively small number of founding workers in different European countries, as well as by wider social, medical and scientific factors in the individual countries

Electronic Health Services: An Introduction to Theory and Application

Information and communication technologies have made dramatic changes in our lives. Healthcare communities also made use of these technologies. Using computerized medical knowledge, electronic patients’ information and telecommunications a lot of applications are now established throughout the world. These include better ways of information management, remote education, telemedicine and public services. Yet, a lot of people don't know about these technologies and their applications. Understanding the concepts and ideologies behind these terms, knowing how they will be implemented, what is it like to use them and what benefit will be gained, are basic knowledge steps approaching these technologies. Difficulties using these services, especially in developing countries should not be neglected or underestimated